:root{--ink:#17212b;--muted:#6d7782;--paper:#fff;--bg:#f3f1ed;--cream:#faf8f4;--line:#ddd9d1;--line2:#c9c4ba;--accent:#176b63;--accent2:#d58a45;--blue:#315bce;--danger:#b84b4b;--shadow:0 18px 50px rgba(30,34,37,.08);--r:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:radial-gradient(rgba(23,33,43,.035) .6px,transparent .6px);background-size:8px 8px;opacity:.35}a{text-decoration:none;color:inherit}.topbar{height:72px;background:rgba(250,248,244,.96);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 clamp(16px,4vw,64px);gap:28px;position:sticky;top:0;z-index:50}.brand{font-weight:850;font-size:20px;display:flex;align-items:center;gap:10px}.brandmark{width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-family:Georgia,serif;font-weight:900}.brand>span:last-child span{color:var(--accent)}.topbar nav{display:flex;gap:24px;margin-left:auto;color:#5e665f;font-size:14px}.nav-cta{background:var(--ink);color:#fff;padding:11px 16px;border-radius:10px;font-weight:750;font-size:14px}.wrap{width:min(1220px,calc(100% - 32px));margin:auto}.app-page{padding-bottom:100px}.app-head{padding:46px 0 24px;display:flex;justify-content:space-between;gap:30px;align-items:end}.app-head h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(36px,5vw,62px);line-height:1.02;letter-spacing:-.035em;max-width:780px;margin:12px 0 12px;font-weight:600}.app-head p{color:var(--muted);font-size:16px;max-width:650px;margin:0}.eyebrow{font-size:11px;font-weight:850;letter-spacing:.13em;color:var(--accent);text-transform:uppercase}.head-actions{display:flex;gap:8px;flex:none}.btn{border:1px solid transparent;border-radius:11px;padding:12px 16px;font:inherit;font-size:13px;font-weight:800;cursor:pointer;transition:.18s transform,.18s box-shadow}.btn:hover{transform:translateY(-1px)}.btn.primary{background:var(--accent);color:#fff;box-shadow:0 7px 18px rgba(23,107,99,.18)}.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line2)}.btn.small{padding:9px 12px;font-size:12px}.btn.large{padding:14px 20px}.promo{border:1px solid #d8d4ca;background:#eeece6;border-radius:12px;padding:10px 14px;display:flex;gap:10px;align-items:center;color:#58605b;font-size:12px;margin-bottom:18px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,.82fr);gap:20px;align-items:start}.card-surface,.preview-panel{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.stepbar{display:flex;border-bottom:1px solid var(--line);background:#fbfaf7;border-radius:18px 18px 0 0;padding:0 18px}.step{padding:15px 12px;color:#9a9a92;font-size:12px;border-bottom:2px solid transparent;display:flex;gap:7px}.step.active{color:var(--accent);border-color:var(--accent)}.step b{font-weight:800}.form-area{padding:8px 22px 24px}.form-block{padding:25px 0;border-bottom:1px solid var(--line)}.form-block:last-child{border-bottom:0}.block-title{display:flex;justify-content:space-between;gap:15px;margin-bottom:17px}.block-title>div:first-child{display:flex;gap:12px}.block-title h2{font-size:16px;margin:0 0 2px}.block-title p{margin:0;color:var(--muted);font-size:12px}.num{width:28px;height:28px;border-radius:50%;background:#e8f1ef;color:var(--accent);display:grid;place-items:center;font-size:10px;font-weight:900;flex:none}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field-grid label,.upload-label{display:flex;flex-direction:column;gap:6px;font-size:11px;font-weight:800;color:#59615e}.field-grid .wide{grid-column:1/-1}.field-grid input,.field-grid textarea,.field-grid select,.item-line input,.item-line select,.price-options input{font:inherit;font-size:13px;font-weight:500;color:var(--ink);background:#fff;border:1px solid #d5d1c9;border-radius:9px;padding:11px 12px;outline:none;width:100%}.field-grid textarea{min-height:72px;resize:vertical}.field-grid input:focus,.field-grid textarea:focus,.field-grid select:focus,.item-line input:focus,.item-line select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(23,107,99,.09)}.business-row{display:flex;gap:14px}.grow{flex:1}.logo-drop{width:92px;flex:none}.logo-drop input,.upload-label input{display:none}.logo-placeholder{height:92px;border:1px dashed #c9c4ba;border-radius:12px;background:#f7f5f0;display:grid;place-items:center;color:#8b8e89;font-size:24px;cursor:pointer;overflow:hidden}.logo-placeholder small{font-size:10px;display:block}.logo-placeholder img{width:100%;height:100%;object-fit:contain}.logo-drop:has(input:focus) .logo-placeholder{border-color:var(--accent)}.tax-switch{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:12px;font-weight:800}.tax-switch select{padding:10px 12px;border:1px solid #d5d1c9;border-radius:9px;background:#fff;font:inherit}.items-table{overflow:auto}.item-head,.item-line{display:grid;grid-template-columns:2.1fr .9fr .62fr .85fr .62fr 34px;gap:7px;min-width:640px;align-items:center}.item-head{font-size:10px;color:#8a8d88;font-weight:850;text-transform:uppercase;letter-spacing:.05em;padding:0 4px 7px}.item-line{margin-bottom:7px}.item-line input,.item-line select{padding:9px 9px;font-size:12px}.remove{width:32px;height:32px;border:0;border-radius:8px;background:#f2efeb;color:#8d8b85;font-size:18px;cursor:pointer}.price-options{display:flex;justify-content:flex-end;gap:10px;margin-top:12px}.price-options label{font-size:11px;font-weight:800;color:#666;display:flex;align-items:center;gap:6px}.price-options input{width:80px;padding:8px}.payment-grid{display:grid;grid-template-columns:1fr 145px;gap:18px}.qr-card{background:#f5f3ee;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.qr{width:100px;height:100px;display:grid;place-items:center;background:#fff}.qr-card strong{font-size:12px}.qr-card span{font-size:10px;color:var(--muted)}.signature-row{display:grid;grid-template-columns:180px 1fr;gap:14px;align-items:center;margin-bottom:16px}.upload-label{background:#f5f3ee;border:1px dashed #c8c2b8;border-radius:10px;padding:12px;text-align:center;cursor:pointer}.text-btn{border:0;background:none;color:var(--accent);font-size:11px;font-weight:800;cursor:pointer;margin-top:8px}.sig-draw{border:1px solid #d5d1c9;border-radius:10px;background:#fff;overflow:hidden}.sig-draw canvas{width:100%;height:115px;display:block;touch-action:none}.sig-draw span{display:block;padding:5px 10px;background:#f7f6f2;color:#8b8d89;font-size:10px}.final-actions{display:flex;gap:9px;padding-top:20px}.preview-panel{position:sticky;top:90px;overflow:hidden}.preview-top{padding:15px 17px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;background:#fbfaf7}.preview-top strong{display:block;font-size:13px}.preview-top span{display:block;color:var(--muted);font-size:10px;margin-top:2px}.icon-btn{width:34px;height:34px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}.paper-wrap{padding:24px;background:#e7e3dc}.invoice-paper{background:#fff;box-shadow:0 18px 35px rgba(30,34,37,.12);padding:38px;min-height:820px;color:#202a30;font-family:Arial,Helvetica,sans-serif;font-size:10px}.paper-brand{display:flex;justify-content:space-between;gap:20px;padding-bottom:22px;border-bottom:2px solid #202a30}.brand-side{display:flex;gap:12px;align-items:flex-start}.invoice-logo,.invoice-logo-fallback{width:54px;height:54px;object-fit:contain;border-radius:7px}.invoice-logo-fallback{background:#176b63;color:#fff;display:grid;place-items:center;font-size:23px;font-weight:800}.paper-brand h2{font-size:17px;margin:0 0 4px}.paper-brand p{margin:1px 0;color:#6c7478;font-size:8.5px}.invoice-word{text-align:right;font-size:27px;letter-spacing:.03em;font-weight:800}.invoice-word span{display:block;font-size:9px;color:#697278;margin-top:4px;font-weight:600}.paper-meta{display:flex;justify-content:space-between;gap:20px;padding:20px 0}.paper-meta>div:first-child{display:flex;flex-direction:column;gap:4px}.paper-meta small,.pay-box small,.amount-words small,.signature-box small{display:block;font-size:7.5px;letter-spacing:.1em;color:#899197;font-weight:800;margin-bottom:4px}.paper-meta strong{font-size:11px}.paper-meta span{font-size:8.5px;color:#657077}.dates{display:flex;gap:24px;text-align:right}.dates span{display:flex;flex-direction:column;gap:2px}.paper-items{width:100%;border-collapse:collapse}.paper-items th{text-align:left;background:#f1f3f2;color:#657077;padding:9px 7px;font-size:7.5px;letter-spacing:.06em}.paper-items td{padding:10px 7px;border-bottom:1px solid #eceeec}.paper-items td:not(:first-child),.paper-items th:not(:first-child){text-align:right}.paper-items td strong{display:block;font-size:9px}.paper-items td small{display:block;color:#899197;font-size:7.5px;margin-top:2px}.paper-bottom{display:grid;grid-template-columns:1fr 220px;gap:30px;margin-top:22px}.pay-box{border:1px solid #e0e2df;border-radius:8px;padding:12px;min-height:105px;position:relative}.pay-box>b,.pay-box>span{display:block;font-size:8.5px;margin:3px 0}.mini-qr{position:absolute;right:10px;top:10px}.sum-box>div{display:flex;justify-content:space-between;padding:5px 0;font-size:8.5px}.sum-box .grand{border-top:2px solid #202a30;margin-top:5px;padding-top:9px;font-size:13px}.amount-words{margin-top:20px;padding:10px 12px;background:#f7f7f5;border-radius:7px}.amount-words b{font-size:8.5px}.paper-footer{display:grid;grid-template-columns:1fr 170px;gap:30px;margin-top:30px;padding-top:15px;border-top:1px solid #e0e2df}.paper-footer p{font-size:8px;color:#657077;margin:3px 0 12px}.signature-box{text-align:center}.signature-box img{display:block;max-width:130px;height:45px;object-fit:contain;margin:0 auto}.signature-box span{display:block;border-top:1px solid #c7cbc9;padding-top:5px;font-size:8px}.preview-tip{padding:10px 14px;font-size:10px;color:#8a8d89;background:#fbfaf7}.mobile-bar{display:none}.focus-preview .editor{display:none}.focus-preview .workspace{display:block;max-width:900px}.focus-preview .preview-panel{position:static}.focus-preview .preview-tip{display:none}.footer{background:#202a30;color:#cbd1d2;margin-top:60px;padding:55px 20px 24px}.footer-grid{width:min(1220px,100%);margin:auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}.footer h4{color:#fff;margin:0 0 12px}.footer a{display:block;color:#b4bdc0;font-size:13px;margin:7px 0}.footer-brand{color:#fff}.footer-bottom{width:min(1220px,100%);margin:35px auto 0;padding-top:17px;border-top:1px solid #384248;display:flex;justify-content:space-between;color:#8f999d;font-size:11px}@media(max-width:950px){.workspace{grid-template-columns:1fr}.preview-panel{position:static}.head-actions{display:none}.app-head{padding-top:30px}.mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:100;background:#faf8f4;border-top:1px solid var(--line);padding:9px 10px calc(9px + env(safe-area-inset-bottom));gap:8px}.mobile-bar .btn{flex:1}.app-page{padding-bottom:90px}}@media(max-width:620px){.wrap{width:calc(100% - 20px)}.app-head h1{font-size:40px}.stepbar{overflow:auto}.step{white-space:nowrap}.form-area{padding:4px 14px 20px}.field-grid{grid-template-columns:1fr}.business-row{flex-direction:column}.logo-drop{width:82px}.payment-grid{grid-template-columns:1fr}.signature-row{grid-template-columns:1fr}.price-options{justify-content:flex-start;flex-wrap:wrap}.paper-wrap{padding:10px}.invoice-paper{padding:23px;min-height:720px}.paper-bottom{grid-template-columns:1fr}.paper-footer{grid-template-columns:1fr}.dates{text-align:left;gap:12px}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column;gap:8px}.topbar nav{display:none}.nav-cta{margin-left:auto}}@media print{body{background:#fff}.topbar,.footer,.app-head,.promo,.editor,.preview-top,.preview-tip,.mobile-bar{display:none!important}.workspace{display:block!important;width:100%;margin:0}.preview-panel{border:0;box-shadow:none;position:static}.paper-wrap{padding:0;background:#fff}.invoice-paper{box-shadow:none;min-height:0;width:210mm;min-height:297mm;margin:0 auto;padding:18mm 16mm}@page{size:A4;margin:0}}
.simple-doc{padding-bottom:80px}.simple-head{padding:48px 0 28px}.simple-head h1{font:600 clamp(38px,5vw,58px)/1.04 Georgia,serif;letter-spacing:-.03em;margin:12px 0}.simple-head p{color:var(--muted)}.simple-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,.9fr);gap:20px}.simple-preview{position:sticky;top:90px}.receipt-paper{background:#fff;min-height:680px;padding:50px 42px;box-shadow:0 15px 35px rgba(30,34,37,.1);font-family:Arial,sans-serif}.receipt-paper h2{font-size:25px;margin:0 0 4px}.receipt-paper .r-rule{height:2px;background:#176b63;margin:20px 0}.receipt-paper .r-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #e6e7e5;font-size:12px}.receipt-paper .r-total{font-size:22px;font-weight:800;margin-top:25px}.receipt-paper .r-sign{margin-top:70px;text-align:right}.receipt-paper small{color:#8b9295;font-size:8px;text-transform:uppercase;letter-spacing:.1em}.receipt-paper p{color:#667076;font-size:11px}@media(max-width:950px){.simple-grid{grid-template-columns:1fr}.simple-preview{position:static}}@media print{.simple-doc{padding:0}.simple-head,.simple-grid>.form-area,.topbar,.footer,.mobile-bar,.preview-top{display:none!important}.simple-grid{display:block}.simple-preview{display:block;border:0;box-shadow:none}.paper-wrap{padding:0;background:#fff}.receipt-paper{box-shadow:none;min-height:0;width:210mm;min-height:297mm;margin:auto}} 
/* V3 product polish: true A4 preview, stronger hierarchy, calmer human UI */
.app-head{padding-bottom:18px}.app-head h1{max-width:700px}.workspace{grid-template-columns:minmax(0,1.04fr) minmax(430px,.96fr);gap:24px}.preview-panel{position:sticky;top:86px;align-self:start}.preview-top{min-height:66px}.preview-tools{display:flex;align-items:center;gap:5px}.zoom-readout{min-width:48px;border:0;background:transparent;color:#68706e;font:700 11px inherit}.paper-wrap{display:flex;justify-content:center;align-items:flex-start;overflow:auto;min-height:calc(100vh - 190px);padding:24px;background:#ddd9d1}.invoice-paper{width:100%;max-width:794px;min-height:1123px;height:auto;aspect-ratio:210/297;padding:42px;background:#fff;transform:scale(var(--preview-zoom,1));transform-origin:top center}.preview-tip{display:flex;flex-direction:column;gap:2px}.preview-tip strong{color:#58605b}.preview-tip span{color:#8a8d89}.focus-preview .editor{display:none}.focus-preview .workspace{display:block;max-width:900px}.focus-preview .preview-panel{position:static}.focus-preview .preview-tip{display:none}
@media(max-width:1100px){.workspace{grid-template-columns:minmax(0,1fr) minmax(380px,.78fr)}.invoice-paper{padding:34px}}
@media(max-width:950px){.workspace{grid-template-columns:1fr}.preview-panel{position:static}.paper-wrap{min-height:0}.invoice-paper{max-width:794px;margin:0 auto;transform:none;aspect-ratio:210/297}.preview-tools{display:none}}
@media(max-width:620px){.app-head{padding-top:28px}.app-head h1{font-size:38px}.workspace{gap:14px}.preview-panel{border-radius:14px}.paper-wrap{padding:10px;overflow:hidden}.invoice-paper{width:100%;min-height:0;padding:24px;aspect-ratio:210/297}.paper-brand{gap:10px}.invoice-word{font-size:22px}.paper-meta{padding:14px 0}.paper-items th{padding:7px 4px;font-size:6.5px}.paper-items td{padding:7px 4px}.paper-bottom{gap:12px;margin-top:14px}.paper-footer{margin-top:18px}.preview-top{padding:12px 14px}.preview-top span{font-size:9px}}
@media print{.invoice-paper{width:210mm!important;height:297mm!important;aspect-ratio:auto;max-width:none;min-height:297mm!important;transform:none!important}}
/* V4 — compact professional billing workspace */
.app-head{padding:24px 0 14px;align-items:center}
.app-head h1{font-size:clamp(30px,3.2vw,46px);max-width:620px;margin:7px 0 8px}
.app-head p{font-size:13px;max-width:620px}
.promo{margin-bottom:12px;padding:8px 12px}
.workspace{width:min(1260px,calc(100% - 32px));grid-template-columns:minmax(0,720px) 500px;gap:20px;align-items:start}
.editor{min-width:0;max-height:calc(100vh - 150px);overflow:auto;scrollbar-gutter:stable}
.editor::-webkit-scrollbar{width:8px}.editor::-webkit-scrollbar-thumb{background:#d0cbc1;border-radius:99px}.editor::-webkit-scrollbar-track{background:transparent}
.stepbar{position:sticky;top:0;z-index:4}
.form-area{padding:2px 20px 18px}
.form-block{padding:18px 0}
.block-title{margin-bottom:12px}.block-title h2{font-size:15px}.block-title p{font-size:11px}
.field-grid{gap:9px}.field-grid input,.field-grid textarea,.field-grid select{padding:9px 10px;font-size:12px}.field-grid textarea{min-height:58px}
.preview-panel{width:500px;max-width:100%;position:sticky;top:84px}
.paper-wrap{padding:18px;min-height:0;display:flex;justify-content:center;overflow:auto;background:#e1ddd5}
.invoice-paper{width:430px;max-width:100%;min-height:auto;height:auto;aspect-ratio:210/297;padding:25px;transform:none;flex:none}
.preview-top{padding:12px 14px}
.preview-tip{padding:8px 12px}
@media(max-width:1280px) and (min-width:951px){.workspace{grid-template-columns:minmax(0,1fr) 460px}.preview-panel{width:460px}.invoice-paper{width:400px}.form-area{padding-left:16px;padding-right:16px}}
@media(max-width:950px){.app-head{padding-top:22px}.workspace{width:calc(100% - 20px);grid-template-columns:1fr}.editor{max-height:none;overflow:visible}.preview-panel{width:100%;position:static}.paper-wrap{padding:12px}.invoice-paper{width:min(430px,100%);aspect-ratio:210/297;padding:24px}}
@media(max-width:620px){.app-head{padding-top:18px}.app-head h1{font-size:34px}.promo{overflow:auto;white-space:nowrap}.form-area{padding-left:13px;padding-right:13px}.form-block{padding:16px 0}.block-title{align-items:flex-start}.field-grid input,.field-grid textarea,.field-grid select{font-size:13px;padding:10px 11px}.items-table{margin-right:-4px}.preview-panel{margin-top:2px}.invoice-paper{width:100%;padding:21px}.paper-wrap{padding:8px}}
/* V5 — keep editor + live preview side-by-side on normal desktop/tablet widths */
.workspace{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(360px,42% )!important;gap:18px!important;align-items:start!important;width:min(1320px,calc(100% - 28px))!important}
.editor{min-width:0!important;max-height:calc(100vh - 132px)!important;overflow-y:auto!important}
.preview-panel{grid-column:2!important;grid-row:1!important;width:100%!important;min-width:0!important;position:sticky!important;top:82px!important;align-self:start!important}
.preview-panel .paper-wrap{width:100%;display:flex;justify-content:center;overflow:hidden}
.invoice-paper{width:min(100%,520px)!important;max-width:520px!important;aspect-ratio:210/297!important;height:auto!important;min-height:0!important}
/* Only phones stack. */
@media(max-width:760px){
 .workspace{display:grid!important;grid-template-columns:1fr!important;width:calc(100% - 20px)!important}
 .editor{grid-column:1!important;grid-row:1!important;max-height:none!important;overflow:visible!important}
 .preview-panel{grid-column:1!important;grid-row:2!important;position:static!important;width:100%!important;margin-top:14px!important}
 .invoice-paper{width:min(100%,430px)!important;max-width:430px!important}
}